Add 21/35 and 12/36
21/35 + 12/36 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 35 × 36 = 1260,
21/35 = 21 × 36/35 × 36 = 756/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
12/36 = 12 × 35/36 × 35 = 420/1260 - Add the two like fractions:
756/1260 + 420/1260 = 756 + 420/1260 = 1176/1260 - 1176/1260 simplified gives 14/15
- So, 21/35 + 12/36 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+12/36 21/35+24/36 21/70+12/36 21/35+12/72 63/35+12/36 21/35+60/36 21/35+84/36